My work is with large commercials and it is an absolute nightmare to get into. We had an excellent website at a time when someone was looking for pressure washers in Stoke on Trent, they put the search in and I got a life changing call.
Yes it is very much worth getting into large commercial works (of any description), look at Charlie Price, there are many others on here, they just don't shout about it but there is a lot of waiting and messing around for money.
I am owed a lot of money and it is all overdue but it is worth the hassle.
I finished my final job of the year this morning, in London and am now going on holiday on Tuesday and starting again sometime at the end of january.
I have things going on that are quite staggering and I wonder what I have done right.
There is no formula other than being in the right place at the right time but you can help yourself along by having the best website, a uniform, a sign written van and offer the best service in your area.
Good luck
Rob